When I did one 40 years ago, I used a coupling where I wanted the bottom to stop. I used a pipe flange screwed to the outside of the bottom and a short length of pipe through the bottom to keep the seed in. The flange and short pipe was a larger size so it could slid over the post pipe. The coupling also made it easier to take the feeder off of the post to do a periodic cleaning.

Bre, I zoomed in on the pic, and it looks like he drilled a hole in the pipe, and just put a pin in the hole just under the feeder to hold it in place- to pull it down and fill/clean it, he can just pull the pin, and it will slide down

the pipe goes through a box that supports the sides. this makes 2 separate feeding areas. there is 5/16" holes in the pipe, one just below the feeder to keep it up against the upper roof and one 2' below to support the feeder will filling it. i used a 1/4" carriage bolt as a lock pin.if you are interested, i will email the plans i have. or you can view, print or save from here : Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to or

That's a fine looking job you did Dave, was SWMBO pleased? I have tried a couple of feeders over the years but at our current home I can't seem to defeat the squirrels. I had a store bought one that was "squirrel proof" given to me for Christmas, it kept them out for several days. My yard is heavily treed so jumped from overhead.